<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>上传文件</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            /*background: url('background.jpg') no-repeat center center fixed;*/
            background-color: #f4f4f4;
            background-size: cover;
            margin: 0;
            padding: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
        }
        .upload-container {
            background-color: rgba(255, 255, 255, 0.8);
            padding: 20px;
            border-radius: 5px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
            max-width: 400px;
            text-align: center;
        }
        .upload-container h2 {
            margin-top: 0;
        }
        .upload-form {
            display: flex;
            flex-direction: column;
        }
        .upload-input {
            margin: 10px 0;
        }
        .upload-button {
            background-color: #007bff;
            color: #fff;
            border: none;
            padding: 10px;
            border-radius: 5px;
            cursor: pointer;
        }
        .upload-button:hover {
            background-color: #0056b3;
        }
        </style>
    </style>
</head>
<body>
<div class="upload-container">
    <h2>上传文件</h2>
    <form class="upload-form" action="upload" method="post" enctype="multipart/form-data">
        <input type="file" name="img" class="upload-input" required>
        <input type="submit" value="上传">
    </form>
</div>
</body>
</html>
